Starting device for hydrocarbon-engines.



PATENTED AUG. 18, 19 08 R. HUFF.

STARTING DEVICE FOR HYDROGARBON ENGINES; APPLIOATION FILED NOV. 30, 1907.

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R. HVUFDF. STARTING DEVICE FOR HYDROCARBON ENGINES.

APPLICATION FILED NOV. 30, 1907.

invented certain new and useful UNITED STATES PATENT OFFICE.

RUSSELL HUFF, OF DETROIT, MICHIGAN, ASSIGNOR TO PACKARD MOTOR CAR COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF WEST VIRGINlA.

STARTING DEVICE FOR HYDROCARBON-ENGINES.

Specification. of Letters Patent.

Patented Aug. 18, 1908.

To all whom it may concern:-

Be it known that I, RUSSELL HUFF, a citizen of the United States, and resident of Detroit, Wayne county, State of Miohi an, have mprove-i ments in Starting Devices for Hydrocarbon- Engines, of which the following is a specification.

This invention relates to improvements in motor vehicles and more particularly to means for opening the throttle and'retarding the spark while starting the motor, whereby the possibility of back kicking. of the startinlet pipe wide open so that an ample supply of mixture can pass to the motor.

arrangement above described the valvell is moved from its plosed position, as shown in ing crank is precluded.

tion with the accompanying drawing, in which,

Figure 1 is a side elevation of so much of the motor mechanism of the vehicle as is nec essary to illustrate the invention, the parts being. shown in the osition which they as? sume when the vehic e is not running or running slowly; Fig. 2 is a similar view showing the parts in the position assumed when the engine is being cranked; Fig. 3 is a diagram of the commutator; Fig... 4 is a section through the mixture inlet pipe showing the valves therein.

Referring to the drawing, 1 indicates the body of a motor vehicle, 2 the dash-board, 3 the'radiator, 4 the cylinder casings of the en gine, and 5 the inlet pipe which is-prdvidedwith branches 6 leadin to the cylinders within the casings 4. ithin themixture pipe 5 is a valve 7 which is connected through arm 8, link tland lever 10 with a governor G.- The valve 7 which is of any suitable structure, stands normally open. When, however, the motor starts the governor shifts the lever 10 closing this valve more or less, depending upon the speed of the engine. As shown the valve 7 1s beyond the control of the driver of the vehicle and in some classes of vehicles this is a desirable feature as the governor can be so adjusted as to c'losethe valve when the motor reaches a prescribed limit, thus preventing the driver from exceeding the s eed limit at which the governor is set. In t e inlet pipeds also arranged a valve 11 which is operated by an arm 12. The arm 12 is connected with the usual accelerator pedal 13 by means of a link 14 and a spring'15 holds the pedal in its elevated positlon. and the valve 11 normally closed. A

The invention will be described inconnec .by-pass 16 is provided whereby suflicient mixture is permitted to enterthe motor to operate it at ordinary speeds while the valve 11 is closed. I

A link 17 is connected at one end with the arm 12 by a in-and-slot connection and at the other on it is'pivotally connected with one arm of a rocking lever 18, the other arm of said lever being engaged'with anannular groove 19 on the clutch member '20 of the starting crank 21 by means of which the en- (game is cranked. In starting the motor it is esirable to have the valves inthe mixture By the land 4, to its openposition, as shown Flgs 4 in ig.2 when the crank is moved inward to tion. .When through cranking, the c utch member 20 is automatically withdrawn from its complementary clutch member 22by the spring-23 and the valvell is closed by the spring 15. tween the arm 12 and the link 17 permits the accelerator pedal 13 to be operated at any time without disturbing the cranking clutch 20. It is also desirable to retard the spark while cranking to prevent premature jexplo sion'and for this reason Ifconnect the rocking post 24 which carries the commutator 25 As shown, this The pin-and-slot connection be-- the usual adjustment of the commutator 7 without disturbing the crank shaft.

It will be seen that before the crank can be operated to turn the engine'the throttle valve 11 must be. opened and the commutator arranged to retard the spark, under which conditions a-premature. explosion resulting in a Having described .my invention what I claim and desire to secure by Letters-Pat the combination with the mixture, inlet pipe and the throttle valve thereof, of a' starting crank, a clutch for connecting the starting crank with the engine, means for normally holding the clutch'open, means for normally holding the said throttle valve closed,- and a connection between the throttle valve and the starting crank, whereby the former is opened when the latter is moved to operative position. v

3. In controlling means for motor vehicles, the combination with the mixture inlet pipe and the throttle valve thereof, of a starting crank, a clutch for connecting the starting crank with the engine, means for normally holding the clutch open, means for normally holding the said throttle valve closed, a connection between the throttle valve and the starting crank, whereby the former is opened when the latter is moved to operative position, said connection comprising a lever engaging the shaft of the starting crank, an arm onthe valve, and a link connecting said lever and said arm.

4. In controlling means for motor vehicles,

the combination with the mixture inlet pipe and the throttle valve thereof, of a starting crank, a clutch for connecting the starting crank with. the engine, means for normally 2. In controlling means for motor vehicles,

seams holding the clutch open, means for normally,

holding the said throttle valve closed, a conmotion between the throttle valve and the startin crank, whereby the former is openedwhen t e latter is moved to operative position, said connection comprising a lever engaging the shaft of the starting crank, an arm on the valve, and a link connecting said lever and said arm, the said link-having a pin-an'dslot connection with one of said parts.

5. In controlling means for motor vehicles,

the combination with the mixture inlet pipe,

of a throttle valve insaid pipe, an accelerator pedal connected to said valve, and a startin crank also connected" to said valve, the sai valve-being adapted" to be opened either by the accelerator pedal or the starting crank.

, 6. In controlling means for motor vehicles,

the combination with the mixture inlet pipe,

tween said starting crank and said throttle valve and commutator respectively, whereb the throttle 'valve is, opened and the spar retarded durin the cranking of the engine. 7. In control ing means for motor vehicles, the combination with the mixture inletpipe, the throttle valve therein and the commutator, of a starting crank, and pin-'and-slot connectionsbetween said starting crank and said throttle valve and commutator respectively, 1

the throttle valve therein, and theco'mmuta- I tor, of a starting crank, and connections bewhereby the throttle valve is o ened and the spark retarded during the cran 'ng of the engine.

In test mony wher eof I affix my signature in presence of two witnesses.

RUSSELL HUFF.

Witnesses:

MILTON Trsnn'rrs, CLARA' I. DALE. 

